spring security的简单例子

1 pom.的主要文件我引入的thymeleaf-extras-springsecurity5，springboot2.1.6<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency>

    <!-- https://mvnrepository.com/artifact/org.thymeleaf.extras/thymeleaf-extras-springsecurity4 -->
    <dependency>
        <groupId>org.thymeleaf.extras</groupId>
        <artifactId>thymeleaf-extras-springsecurity5</artifactId>

    </dependency>

    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>
2 controller
[@Controller](https://my.oschina.net/u/1774615)

public class KungfuController {

private final String PREFIX = "pages/";

@RequestMapping("/")

public String index() {

	System.out.println("hello word");

	return "welcome";
}

@RequestMapping("/userlogin")

public String loginPage() {

	return PREFIX+"login1";
}

@GetMapping("/level1/{path}")

public String level1(@PathVariable("path")String path) {

	return PREFIX+"level1/"+path;
}

@GetMapping("/level2/{path}")

public String level2(@PathVariable("path")String path) {

	return PREFIX+"level2/"+path;
}

@GetMapping("/level3/{path}")

public String level3(@PathVariable("path")String path) {

	return PREFIX+"level3/"+path;
}

}

//配置下

@EnableWebSecuritypublic class mySecurity extends WebSecurityConfigurerAdapter {

//为啥引入这个bean ，因为在securety在5.0后使用系统的登录模板，默认把密码给加密啦，这个写的是不让密码加密

@Bean
public static NoOpPasswordEncoder passwordEncoder() {

    return (NoOpPasswordEncoder) NoOpPasswordEncoder.getInstance();
}


protected void configure(HttpSecurity http) throws Exception {

   //定制请求的授权规则
    http.authorizeRequests().antMatchers("/").permitAll()

            .antMatchers("/level1/**").hasRole("VIP1")

            .antMatchers("/level2/**").hasRole("VIP2")

            .antMatchers("/level3/**").hasRole("VIP3");

    //开启自动登录的功能

 http.formLogin();

 //开启自动配置的注销功能

 http.logout().logoutSuccessUrl("/");

}


public void configure(AuthenticationManagerBuilder auth) throws Exception {

    auth.inMemoryAuthentication().withUser("mao").password("123").roles("VIP1","VIP2")

            .and().withUser("zhang").password("123").roles("VIP1","VIP3").and()

            .withUser("li").password("123").roles("VIP2","VIP3");

}

}//该模板都是尚学堂的

<!DOCTYPE html>

<html xmlns:th="http://www.thymeleaf.org"

  xmlns:sec="https://www.thymeleaf.org/thymeleaf-extras-springsecurity5">

<head>

<title>Insert title here</title>

</head>

<body>

<h1 align="center">欢迎光临武林秘籍管理系统</h1>

<h2 align="center">游客您好，如果想查看武林秘籍 <a th:href="@{/login}">请登录</a></h2>

</div>

<h2><span sec:authentication="name"></span>，您好,您的角色有：

	<span sec:authentication="principal.authorities"></span></h2>

<form th:action="@{/logout}" method="post">

	<input type="submit" value="注销"/>
</form>

</div>

<hr>

<div sec:authorize="hasRole('VIP1')"><h3>普通武功秘籍</h3><ul><li><a th:href="@{/level1/1}">罗汉拳</a></li><li><a th:href="@{/level1/2}">武当长拳</a></li><li><a th:href="@{/level1/3}">全真剑法</a></li></ul>

</div>

<div sec:authorize="hasRole('VIP2')"><h3>高级武功秘籍</h3><ul><li><a th:href="@{/level2/1}">太极拳</a></li><li><a th:href="@{/level2/2}">七伤拳</a></li><li><a th:href="@{/level2/3}">梯云纵</a></li></ul>

</div>

<div sec:authorize="hasRole('VIP3')"><h3>绝世武功秘籍</h3><ul><li><a th:href="@{/level3/1}">葵花宝典</a></li><li><a th:href="@{/level3/2}">龟派气功</a></li><li><a th:href="@{/level3/3}">独孤九剑</a></li></ul></div>

</body></html>参考文献：【1】https://docs.spring.io/spring-security/site/docs/current/guides/html5/helloworld-boot.html

【2】尚学堂

【3】https://www.jianshu.com/p/9e7792d767b2

南桥北木

spring security的简单例子